Improvement in sole-edge machines



* Y C. D. BIGELW.

Sole-Edge Machine. K

` Patented 1une29, 1875.

lNvENTnFL.

THE GRAPHIC C0. PH0T0-LIYHA398L41 PARK PLACEJTMV CHARLES D. RIGELOW, OF BROOKLYN, NEV YORK, ASSIGNOR TO BAY STATE SHOE AND LEATHER COMPANY, OF ORCESTER, MASSACHUSETTS.

IMPROVEMENT IN SOLE=EDGE MACHINES.

Specification forming part of Letters Patent No. dated June 29, 1875; application tiled June lO, 1875.

which will enable others skilled in the a-rt to which it pertains to make and use the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which form a part of this specication.

The edges of boot and shoe soles are hammered up previous to the trimming and finishing of the edge. This, in the trade, is called pinning up, and has hitherto been done by hand, and which requires much time and considerable labor.

My object is to do this work by a device driven by power from the line-shafting ot' the factory, whereby the work is not only done in much less time, but at greatly less expense and with comparatively little labor.

The device consists of a hanger or bracket piece bolted in a vertical position to the side of a work-bench, a spring trip-hammer being combined therewith, so that its upper or acting face shall operate in a guide in the bracketpiece in position just above a horizontal led ge or rest for the shoe-sole, and so as to be retracted within the guide to give a sharp, strong blow, when liberated, against lthe soleedge, which is for that purpose borne hard upon the outer face of the guide end of the bracket in front of the hammer. The shoe is fed along by hand upon the rest as each blow Vmeans ot'a belt leading therefrom to the driving-power in any suitable way.

In the accompanying drawings, Figurel represents a view in perspective of my shoe-solehammering device; Fig. 2, a vertical section; and Fig. 3, a rear view.

The hanger or bracket is a single plate, a, of a length sufcient to give proper bearingfastenings for a suitable plate-spring hammer. Cast with and project-ing from the upper portion of the hanger, are right-angled eXtensions b b, which are provided with outwardlyprojecting ears c c, having on their inner faces strong horizontal lugs d d, by whichto support the device upon the bench, while screw-bolts, passing through the ears oc, clam p the hanger iirml y against the side ofthe bench with suflicient space between the latter and the inner side of the hanger to allow of the required stroke for the hammer. The hammer consists of a spring-plate, which may be either of Wood or metal, with the hannner-head e formed in one piece with the metal springf, or made separately, and secured thereto in any proper manner. It is arranged onthe inner side ofthe hanger, so asto be between it andthe side of the bench, and its lower end is secured by a screw-bolt, g, tothe hanger, while the hammer-head e is carried at the `upper end ot' the spring-plate in position to play within and through a guide-opening, h, formed at the upper end of the hanger, and just above a lledge or rest, t', projecting from the front side ot' the hanger, and upon which the work is supported in a manner to allow the edge of the sole to be presented and held for action in front of the hammerguide, and against the front side of the guide-head h2 of the hanger, so that the sole-edge will receive the blows ot' the hammer through the guide h, as the stock is moved along upon the hanger-rest, and against the hanger-head, as shown in Fig. 2.

The spring-plate is adjusted to give the required force to the blow ot the hammer, by means of adjusting-screws jj passing through the hanger, and uniting a cross-strap bearing, 7c, upon the rear side of the spring, a suitable distance from its point of attachment to the hanger.

The spring may be 11e-enforced by one or more plates, l, secured thereon, with lappinglips m a-t their free ends.

The spring-hammer is operated by a camshaft, u, secured horizontally to the front side ofthe hanger, in suitable bearings 0, with its cam-projections p working through an opening, q, in the hanger, against asuitable-shaliied projection, r, on the inner side of the spring plate.v

In the example shown, the cam p has two acting-points; but it may have one or more, as may be found best, and according to the speed with which it is driven. A belt from the line-shaft to a pulley, s, on the cam-shaft drives the hammer.

The projection of the hammer e, through its guide h, may be adjusted, as desired, by means of a set-screw, t, passing through the hammer-plate, and bearing upon a rubber cushion, u, set in the bracket, which serves also to deaden the noise which would otherwise be made by the hammer upon the metal.

The driving of the cam-shaft operates the hammer e with .quick sharp blows, which, being delivered directly upon the sole-edges, renders them solid, and gives a proper finish to the work. rlhe workman simplyr holds the Work and moves it along as the hammer strikes its successive blows, and thereby accomplishes by power a very large branch of tnishin g work 'hitherto done by hand.

When a wooden spring isy employed, the hammer face or head proper may be secured thereto in any suitable manner.

I have described the device for hammering 'the edges of the soles; but for beatin g up the edges 0f the heels I change the hammer head or face for that purpose.

I claim- 1. A device for vhammering the sole-edges of boots and shoes, consisting of a bench-bracket hanger, a, provided with a support or rest, z', for the work, and a spring-hammer, e, automatically operating` to deliver the blows upon the sole-edge, through a, guide, h, by means of a power-driven cam-shaft, a, attachment to the bracket, substantially as herein specified.

2. The combination, in a power device for hammering the sole-edges of boots and shoes, of a spring trip-hammer, e f, with an adjusting-screw, t, and rubber cushion u, whereby the hammer may be adjusted to project more or less through and beyond its guide, and the noise from the blows avoided, as herein set forth.

3. rlhe combination, in a power device for hammering the sole-edges ot' boots and shoes, ot' a spring trip-hammer, ef, attached to its carrying bracket-hanger a, with screws jj, for adjusting the spring to increase orv diminish the force of the blow delivered upon the soleedges, as set forth. v

4. rIhe combination, in a power-1n aehine for hammering the sole-ed ges ot boots and shoes, ot' a rest, i, for the sole of the work, -a face support, 11.2, in the guide-head, for the edge of the sole, and the hammer e, operating through a guide-opening, h2, upon the sole-edge, substantially as herein set forth.

In testimony that I claim the foregoing I have affixed my signature in presence ot' two witnesses.

cans. D. BienLow.

Witnesses:

A. E. H. J oHNsoN, v J. W. HAMILTON JOHNSON. 

